389200556

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{700001}}^1$

素因数の和:700144

約数の個数: 12

約数和(自身を含む): 686001960

約数和(自身を除く): 296801404

約数列:

[1, 2, 4, 139, 278, 556, 700001, 1400002, 2800004, 97300139, 194600278, 389200556]

約数ペア:

[(1, 389200556), (2, 194600278), (4, 97300139), (139, 2800004), (278, 1400002), (556, 700001)]